______ we know, in a chemical change, energy cannot be created, _______.

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• 1---Would you like to go to see a film with me tonight? 　 --- _______ , but I have a visiting friend now.

  A.I would

  B.I'd like to

  C.I'd be happy

  D.I'd prefer

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• 2----- She doesn't play the piano, but she likes singing and dancing. -----_________.

  A.So I am

  B.So it is with my sister

  C.So am I

  D.Neither do I

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• 3I failed in the examination last term and only then ______ the importance of studies.

  A.I realized

  B.I had realized

  C.had I realized

  D.did I realize

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• 4Little _______ that we were watching his every move, so he seemed to be going his own way in this business.

  A.he realized

  B.he didn't realize

  C.didn't realize

  D.did he realize

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• 5Hearing the dog barking fiercely, away ________.

  A.fleeing the thief

  B.was fleeing the thief

  C.the thief was fleeing

  D.fled the thief

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• 6He,  _____ in a poor family, became one of the greatest writers in the world.

  A.as born

  B.that is

  C.who is

  D.although born

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• 7This lecture is by no means the most boring. I've attended_____.

  A.better

  B.worse

  C.the best

  D.the worst

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• 8At the meeting place of the Yangtze River and the Jialing River ________, one of the ten largest cities in Chin

  A.A.lies Chongqing

  B.Chongqing lies

  C.does lie Chongqing

  D.does Chongqing lie

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• 9Only when your identity has been checked , ______ .

  A.you are allowed in

  B.you will be allowed in

  C.will you allow in

  D.will you be allowed in

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• 10Not until ________ her dark glasses ___________ she was a famous film star.

  A.did she take off, I realized

  B.she took off, did I realize

  C.did she take off, did I realize

  D.she took off, I realized

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